Small Scale Military Headquarters

Hi, Had this on wrong forum, but how is these models with detail and do they go with 21st century/FOV. Would they be a good add for a 1/32 collection. Are they diecast ?ideas? Have alot of questions for a new collector. thanks

new ray does a pretty good job. i have the CH-46 USMC low vis
its diecast and the paint is well done